Thanks for your input, I hadn't even thought about the bolts.
I was just reading about muriatic for rust, I already use it to clean most of the boat. I used to worry about getting it on my skin or my clothes, that was before I started taking specific gravity readings....
Port side engine doesn't run. Here's a picture of the starboard side for comparison. That salt
water is nasty stuff, I used to wash down the decks with it, not anymore. I'll stick with Hydrochloric acid.
Sodium Chloride ruined my tools, all my zippers, and even my feet!